2026 layover guide
Atlanta (ATL) connection time
At Hartsfield–Jackson Atlanta International Airport, plan on at least 55 min for a domestic connection, 1 h 5 min if you change terminals, and 2 h 25 min if you're arriving from abroad. Here's why, step by step.
Verified Oct 17, 2026By Steven MoHow we check Report a correction
Comfortable: 1 h 30 min
By Plane Train, inside security
Customs, bag recheck and security
Inside security, by Plane Train
Quick answer
Plan on at least 55 min for a domestic connection at ATL, 1 h 5 min if you change terminals and 2 h 25 min after an international arrival. You stay inside security for domestic connections.
- Domestic, same terminal
- 55 min (comfortable: 1 h 30 min)
- Changing terminals
- 1 h 5 min by Plane Train
- From abroad
- 2 h 25 min, including customs and bag recheck
- Hub airlines
- Delta Air Lines
How long a layover do I need?
- Get off the plane and walk to your next gate25 min
- Be at the gate before boarding closes15 min
- Buffer for a small delay15 min
Our estimate, rounded up, not the airline's official minimum connection time. If both flights are on one ticket, the airline will rebook you if a delay makes you miss the second one. How we calculate this
Recommended layovers at ATL
Our estimates for common connections, rounded up. Comfortable times leave room for a late arrival.
| Connection | MinimumRecommended minimum |
|---|---|
Domestic to domestic, same terminal Checked bags transfer automatically | 55 min Comfortable: 1 h 30 min |
Domestic to domestic, changing terminals By Plane Train | 1 h 5 min Comfortable: 1 h 45 min |
International arrival, connecting domestically Customs, bag recheck and TSA | 2 h 25 min Comfortable: 3 h 15 min |
Same, with Global Entry and PreCheck Faster customs and security | 1 h 55 min Comfortable: 2 h 45 min |
Separate tickets with checked bags No protection if you miss it | 1 h 55 min Comfortable: 2 h 45 min |
Airlines' official minimum connection times can be shorter: if you booked both flights on one ticket, the airline has already checked that the connection is legal and will rebook you if a delay makes you miss it.
Getting around ATL
Terminals
Domestic Terminal with Concourse T, plus Concourses A, B, C, D, E and F (the international terminal).
Changing terminals
All seven concourses are connected inside security by the Plane Train, which runs every couple of minutes, and by an underground walkway with moving sidewalks. You never have to leave security for a domestic connection.
Customs and international arrivals
Arriving from abroad, you clear U.S. Customs and Border Protection (CBP), collect your checked bags, drop them at the recheck belt and go through TSA security again before your connection. At ATL that happens in Concourse F or E.
Tips for connecting at ATL
- •The Plane Train is the fastest way between concourses; even T to F takes only a few minutes.
- •Delta uses every concourse, so check your connecting gate as soon as you land.
Plan your trip through ATL
The airport guide, and the bag rules for the airlines you're likely to connect on here.
ATL connection FAQ
Airlines set their own official minimums at ATL and only sell connections that meet them, so a one-ticket itinerary is always "legal". In practice we recommend at least 55 min for a domestic connection, 1 h 5 min when you change terminals and 2 h 25 min after an international arrival.
Other airports
Sources
Last verified Oct 17, 2026. Terminals and connection rules change, so check your airline's connection instructions before a tight layover.
Read how we collect and check this data, or tell us if something's out of date.
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